Dual 600 cfm Edelbrock carbs on stock RV 440 engine???

[Geoff 2]

Maybe it is the picture angle, but the sec cluster on the left looks decidedly larger than the one on the right. 1405 & 1406 are both 600 cfm carbs, & would expect external dimensions to be the same. What I have seen is that 8bbl intakes can have large variations in jetting. In the MP book, for a 1962 383, one m/jet is 0.089", other is 0.065".

 

[lewtot184]

Maybe it is the picture angle, but the sec cluster on the left looks decidedly larger than the one on the right. 1405 & 1406 are both 600 cfm carbs, & would expect external dimensions to be the same. What I have seen is that 8bbl intakes can have large variations in jetting. In the MP book, for a 1962 383, one m/jet is 0.089", other is 0.065".

I've seen that. Only thing i can think of is distrbution issues.